Ventilator.



G. G. LOEHLER.

VBNTILATOR.

Patented June 8, 1909.'

UNITED sTATEs PnTENT oEEroE.

I GUSTAV G. 4LOEHLER, OF WASHINGTON, DISTRICT OFv COLUMBIA, ASSIGNOR OFONE-HALF -TO DANIEL P. BUSH; OF WASHINGTON, DISTRICT OF COLUMBIA To allwhom it may concern:

vENTILAToR.

Be it known that. I, GUsTAv G. LoEnLER, a citizen 'of the UnitedStates', residing at 'I'Vashingtorn in the District oi Columbia,

have invented certain new and useful Improveniente in Ventilators and Ido hereby declare the following to be a full, clear, and

exact description of the invention, such, as-

will enable others skilled in the art to @which 1t rppertains to makeand use the same.

- his invention relates to improvements in ventilators, and is primarilydesigned vto provide 'Ventilating means, avoiding any drafts,communicating betweemtheexterior and interior ofanycompartment, whetherit be a room, car, or other form of compartment.

While the invention may be associated with any form of compartment, asstated,

and while it may be disposed in planes outside of the horizontal, still,for the purpose of simplicity of illustration the invention 1s shown asap lied to the bottom of a window sash, exten ing transversely of thewindow and forming the Ventilating means between the interior of a roomand the exterior atmosphere. It will also lbe understood that vthe finvention is not restrictedv to the exact ai*- form, the upper portion 1being cutaway,

ran ement shown, but for the purpose of disc osure reference is had tothe accom anying drawings illustrating a practica embodiment of theinvention,'and rthe particular features of novelty will be pointed outmore succinctly in the claims..

Referring to the l, drawings, in which like numerals represent likeparts in the several re 1 is a fragmentary 'front view of the windowsash :with

views-'Fi elevationa the invention applied, the hinged cover be-.

ing omitted. Fig. 2,'is a fragmentary perspective view loo ing toward'one endA of the Ventilating member. Fig. 3 is a vertical cross sectionthrou h the sash and ventilating member, and Fig. 4 is a perspectiveview of the cover or hinged plate.

In thedrawings the invention is illustrated as applied to the -bottom ofthe -window sash, by recessing the same as shown at Fig. 1', vtheVentilating member being bodily inserted in' said recess and rigidlysecured therein in any suitable way.

While the ventilator may be integrally formed of meta'LI have shown'itof sectional to provide a zig-zag bottom face extending from thelowervoutside position 2, upwardly Specification ,of Letters Patent.,Application filed February 9, 1909. Serial No.' 477,013.

thepractical form, because by having the exterior opening directeddownward y Patented June s, 1909.

to the position `3, thence downwardly to the yposition 4,. thenceupwardly and inwardly to the position 5. Disposed below this, and whenlnserted in position forming a continuation of the bottom of the sash,is

the lower member 6, similarly cut away on its upper face in a zig-zaglfashion, so that the zig-zag surface will lieV substantiallyA parallelto the surface just described. These two portions of the ventilator areheld spaced apart in any suitable manner and they form aA zig-zagchannel adapted to extend upwardly from the extenor atmosphere, thencedownwardly, and thence V upwardly, opening into the interior ofthecompartment in a direction the reverse ofthe dis osition of'theexterior'opening.

t is obvious that the channels mightjbe cut in .just thereverse'direction, but this is prevents water from beating in andfilling" 'up the channel formed;

In ventllating it is deemed advisable not to have too big an opening,which is .unprotected from the elements, but it is desirable to admitthe same amount oi air through separate o enlngs, the incoming air beingso directed. t at it will not be discharged in a strongdraft or current,and in order to provide'a plurality of channelsof the sani'e conto'ur asthe one just described, I employ one or-rnore zig-za vanes 7 in the formof oppositely dispose triangles having a common leg. These v anes,lwhicli may be turned out in long strips from' a fluted roller and clipedofi in proper sections, may be secure etween the upper and lower membersin any suitable way, but for the purpose of illustration we havesimply'shown themas formed from metal, comprising three wings angularlyhowever, that these vanes may be heldin position in any way at all, butwhen they are fixedin the manner shown the ears 8 arel rcferablycountersunk in the upper mem- .ber and iinishirig plates, not shown, maybe fastened to the ends of the Ventilating memioo ber to cover theseturned over ears and make a smooth lit in the recessed portion of thesash. Also any suitable means may be provided y,for forming `a door orclosure for the ventilator, but the simplest form for illustration isshown as comprising a plate 11, hinged as at 12 to the bottom of thesash and of a depth-suflicient to cover the Ventilating channels, thisplate being slotted as at 12 and adapted to register with screw eyes 1-3and 14 and be held either in the closed or open position, as will beapparent.

It 1s evident that the Ventilating means may be of any .suitable lengthor one or more `of such means may be spaced along the sash, yor they mayhave circular openings instead of elongated ones, the principle of theinvention residing inthe introduction of fresh air .'into a'compartment,the pressure at the same time being so equalized by the linterruptedpassage of the air through the zigzagging channels 'that it is admittedinto the room without creating a current or draft.

Having thus described the invention, what l claim is :-l 1. Thecombination of a suitable recessed support and Ventilating means fittedin said support so as to be flush with the outer surface thereof, saidmeans including .a plurality of continuous metal strips, each ystripbeing bent so as to form. a plurality of op ositely-disposed rightangles, said stri s being p parallel With'eaf-h other, substantial y asdescribed.

2. The combination of a recessed window sash and Ventilating meansfitted in said recess so as to be flush With the outer surface of saidsash, said means including a plurality of 'continuous metal strips, eachstrip being bent so as to form ay plurality of oppositely disposed rightangles and said strlps being parallel with each other, substantially asdescribed.

3. The combination of a recessed window sash, a movable cover for saidrecess', and

GUSTAV G'. LOEHLE R.

Witnesses:

R. M. PARKER, D. P. BUSH.

